Let x be a random variable that represents the pH of arterial plasma oods). For healthy adults, the mean of the x distribution is µ = 7.4 (Refere- lanual, a commonly used reference in medical schools and nursing program thritis has been developed. However, it is thought that this drug may chan andom sample of 31 patients with arthritis took the drug for 3 months, Blo- = 8.1 with sample standard deviation s = 1.9. Use a 5% level of significar nat the drug has changed (either way) the mean pH level of the blood. dult meen =7.4

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Let x be a random variable that represents the pH of arterial plasma
oods). For healthy adults, the mean of the x distribution is µ = 7.4 (Refere
lanual, a commonly used reference in medical schools and nursing program
thritis has been developed. However, it is thought that this drug may chan
andom sample of 31 patients with arthritis took the drug for 3 months, Blo-
= 8.1 with sample standard deviation s = 1.9. Use a 5% level of significan
nat the drug has changed (either way) the mean pH level of the blood.
dult meen=7.4
Transcribed Image Text:Let x be a random variable that represents the pH of arterial plasma oods). For healthy adults, the mean of the x distribution is µ = 7.4 (Refere lanual, a commonly used reference in medical schools and nursing program thritis has been developed. However, it is thought that this drug may chan andom sample of 31 patients with arthritis took the drug for 3 months, Blo- = 8.1 with sample standard deviation s = 1.9. Use a 5% level of significan nat the drug has changed (either way) the mean pH level of the blood. dult meen=7.4
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